If you experience flickering lights in your video from BRIO 505, you can adjust the Anti-flicker setting in Logi Tune. The frequency of your lights should be synchronized with your webcam to avoid having visible flickering on your video. This means you have basically instructed the camera you are using to take a picture every time the ON cycle happens. In order to achieve synchronization you can choose between two settings; NTSC 60HZ and PAL 50HZ. Depending on your locations and environment this will vary, but Logi Tune will let you select either of the two options.